The garden is on top of the cantina and in order to fully upgrade it you need to plant seeds and wait for them to grow a couple of times.
Before you do that though you will need to recruit the NPC "Pili". You will cross paths with her on the planet Jedha while you are on the objective "Reach pilgrims sanctuary". I believe you have to go past her during the main mission and once you do make sure to stop and talk to her and she will go back to the Cantina.
Now you will also need seeds, and you will find these all over. Especially on the planet Koboh. Whenever you see vegetation with green lights flying around them that is a plant that you can attack with your lightsaber and grab the seeds.
Once you have a decent amount of seeds visit the garden on top of the cantina and plant you first plot of seeds. EVERY HEXAGON MUST BE FILLED IN ORDER TO UPGRADE THE GARDEN. If you are missing even one hexagon the garden will not grow. I recommend filling in the spaces with large plants first, than medium, and then all the ones you are missing plant a small seed in.
Once the first plot is completely filled in, progress through the story or do some exploring. (I'm not sure exactly how much time needs to pass for the plants to grow). Stop back at the cantina and if the plants are fully grown Pili will mention that she has upgraded the garden allowing you to plant more seeds.
Repeat the process again making sure every hexagon is full in the new plots Pili opened up. Double check to make sure.
Progress the story some more and come back and once your plants are fully grown Pili will again mention shes upgraded the farm and the achievement will unlock. (Mine actually unlocked while I was fast traveling back to Koboh.
EDIT: There are some people saying that you need a certain amount of variety to upgrade the garden to the next tier. I was able to do this using the same seeds over and over again. So if you've planted everything in the garden and its fully grown but not upgrading it may be because you need a certain amount of different plants. I did not though.
I can confirm that I needed to plant all 10 seeds for the last section to unlock. I had 9/10 planted and full gardens. The last area would not unlock after hours of gameplay. I used Powerpyx’s list and found the 10th seed I was missing. I replaced one repeat plant with the new seed. As soon as that fully grew, the achievement unlocked when fast traveling back to Koboh.
Posted by Thai J on 14 May 23 at 14:33
The website doesnt have a video, only text and images, but it tells you where to look for each flower and all the different colours if you want to make it pretty. Not sure if its necessary but I filled every space in the garden like some comments said and made sure to plant one of each flower. I wasn't at the garden when the achievement popped but I was on Koboh, it popped when the last flower finished growing. For anyone wondering the reward for unlocking all the plots is a map upgrade that shows you where seeds are. Go figure.
https://vulkk.com/2023/05/10/jedi-survivor-gardening-guide/#...
Small plots: Spine Fluff, Pine Fern, Bluebell Squish
Medium plots: Tuber Maw, Palm Fruit Shell, Koboh Spider, Cactus Ball
Large plots: Fire Pineapple, Goldenlight Moss, Crimson Jelly Spire
Posted by Etifuloper on 15 May 23 at 13:09
I unlocked the achievement, unintentionally, doing this:
I recruited Pili before planting anything. Then, I completely filled the first garden in one planting session, accidentally planting two of the same small plant. Every other plant was unique. Around an hour later, I returned to the garden. What I had planted was now fully grown and Pili said she upgraded the garden. I now had the original garden plus two more. I did not fill either of the new ones completely, but I did plant some seeds. I went on the mission to rescue someone who was taken from Pyloon’s and returned, unlocking the achievement. This is what I had planted upon unlocking the achievement:
Small:
Spine Fluff: green, yellow (x2), blue, red
Pine Fern: green, yellow, blue
Bluebell Squish: green, blue, red
Medium:
Tuber Maw: green, yellow, blue, pink
Palm Fruit Shell: green, yellow, blue, red
Koboh Spiker: green, yellow, blue
Cactus Ball: green, yellow, red
Large:
Goldenlight Moss: green, yellow, blue, red, pink
Fire Pineapple: yellow
Crimson Jelly Spire: green, yellow, red
Not sure what it means, but that was my experience. The game actually calls pink “Rare” but I wanted to keep it consistent for my own note-taking.
Posted by Vulker707 on 16 May 23 at 03:49
yeah I have no idea on this one. I planted stuff in the first garden right when I got it. Then recruited the character later on. Now I am in the cleanup phase of collectibles. I went back and the 2nd garden had opened. Planted stuff in it, mostly stuff called Rare and tried to get as many unique plants in it as possible.
Now ive been getting collectibles about 2 hours later. Fast traveled to some place and the achievement unlocked when I initiated the fast travel
Posted by Dr Scruffleton on 17 May 23 at 00:16
I believe having all 10 different seeds planted, and Pili, is all you need. I had all 10 in the first plot, filled the rest full just for something to do really, and didn't have Pili recruited as I wasn't that far in the story. When I recruited Pili, the first time I returned to Koboh, the achievement popped. I never had a chance to plant in other plots, but they are all open now.
Posted by Ninjitsu Banana on 19 May 23 at 03:15
I just wanted to add that my garden did not expand by beating the story. My garden only expanded when I had 10 different seeds fully grown in my garden. This is a terrible achievement with a non descript setof requirements to unlock. I hope this helps people unlock it.
As a reward,you get an unlock would have been useful to unlock the acheivement and has almost no value after the fact. Just like the stud fountain in the lego games.
Posted by BobWings on 21 May 23 at 13:56
I tried every tip described in this solution and comments. But I could not get this one to unlock. Today patch 6 was released and after I travelled back to Koboh it unlocked immediately.
Posted by xxxDarkRuleRxxx on 20 Jun 23 at 15:49
The achievement wouldn’t unlock for me even after I filled the 3 plots so I took out 2 plants that were overused and put in the last 2 I hadn’t used yet and then I got it along with the final plot. So it may be necessary to use all of the plant types.
Posted by Daniel Polido on 24 Jun 23 at 07:01
Had to use all 10 different types to get this too.
Posted by Calex dEUS on 16 Feb at 23:01
This video is very good. It shows the locations of the 10 different seeds
https://www.youtube.com/watch?v=AbDBD22IZ3k
Posted by Dmbledore on 18 Feb at 22:01
